Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.219 Home All releases olderv2.1.218 v2.1.220newer
Claude Code v2.1.219

Workshop artifact pages get a publish-time structural verifier

Not switched on
Useful2 Signal3
Artifacts

Publishing a workshop page would run a structural check and refuse instead of shipping violations.

A publish-time HTML and sidecar verifier with its own refusal telemetry, gated off absent a remote value.

Feature flag
tengu_gable_onyx_sluice Not enough to say

Nothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.

This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.219: on

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.219. It isn't a statement about your account. What a flag value here can and cannot tell you

What

Publishing a workshop page runs a structural check over the rendered HTML and refuses the publish on violation instead of shipping it.

Details
  • Verifies against a computed allowlist of blessed inline-script hashes; refusals list rule, where and hint, capped at 12 entries followed by "(and N more)".
  • Sidecar files are policed: workshop pages may not ship renderable or executable sidecars, and non-workshop sidecars of renderable types are probe-verified individually.
  • New telemetry: workshop_verifier_refused, workshop_sidecar_refused, workshop_sidecar_contract.
  • Gated on Xde() = mN() && Ke("tengu_gable_onyx_sluice", !1), so off absent a remote value.
Evidence

workshop pages cannot ship renderable or executable sidecar files

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.219 →